/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:00:21,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:00:21,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:00:21,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:00:21,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:00:21,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:00:21,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:00:21,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:00:21,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:00:21,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:00:21,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:00:21,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:00:21,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:00:21,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:00:21,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:00:21,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:00:21,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:00:21,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:00:21,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:00:21,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:00:21,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:00:21,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:00:21,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:00:21,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:00:21,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:00:21,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:00:21,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:00:21,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:00:21,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:00:21,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:00:21,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:00:21,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:00:21,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:00:21,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:00:21,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:00:21,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:00:21,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:00:21,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:00:21,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:00:21,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:00:21,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:00:21,442 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 12:00:21,455 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:00:21,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:00:21,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:00:21,457 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:00:21,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:00:21,457 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:00:21,457 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:00:21,458 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:00:21,458 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:00:21,458 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:00:21,458 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:00:21,458 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:00:21,458 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:00:21,459 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:00:21,459 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:00:21,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:00:21,459 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:00:21,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:00:21,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:00:21,460 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:00:21,460 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:00:21,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:00:21,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:00:21,460 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:00:21,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:00:21,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:00:21,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:00:21,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:00:21,461 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:00:22,161 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:00:22,175 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:00:22,179 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:00:22,180 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:00:22,180 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:00:22,181 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:00:22,601 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_YXrRPG/tmp/cc2c4f9e16a8407cb753fadcc6f885f8/FLAGd9a5024ad [2020-07-01 12:00:27,495 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:00:27,496 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:00:27,502 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_YXrRPG/tmp/cc2c4f9e16a8407cb753fadcc6f885f8/FLAGd9a5024ad [2020-07-01 12:00:27,923 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_YXrRPG/tmp/cc2c4f9e16a8407cb753fadcc6f885f8 [2020-07-01 12:00:27,934 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:00:27,936 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:00:27,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:00:27,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:00:27,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:00:27,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:00:27" (1/1) ... [2020-07-01 12:00:27,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@516bb4e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:27, skipping insertion in model container [2020-07-01 12:00:27,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:00:27" (1/1) ... [2020-07-01 12:00:27,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:00:27,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:00:28,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:00:28,191 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:00:28,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:00:28,220 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:00:28,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:28 WrapperNode [2020-07-01 12:00:28,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:00:28,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:00:28,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:00:28,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:00:28,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:28" (1/1) ... [2020-07-01 12:00:28,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:28" (1/1) ... [2020-07-01 12:00:28,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:00:28,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:00:28,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:00:28,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:00:28,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:28" (1/1) ... [2020-07-01 12:00:28,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:28" (1/1) ... [2020-07-01 12:00:28,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:28" (1/1) ... [2020-07-01 12:00:28,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:28" (1/1) ... [2020-07-01 12:00:28,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:28" (1/1) ... [2020-07-01 12:00:28,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:28" (1/1) ... [2020-07-01 12:00:28,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:28" (1/1) ... [2020-07-01 12:00:28,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:00:28,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:00:28,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:00:28,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:00:28,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:28" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:00:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:00:28,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:00:28,513 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:00:28,513 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-01 12:00:28,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:00:28 BoogieIcfgContainer [2020-07-01 12:00:28,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:00:28,518 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:00:28,518 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:00:28,520 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:00:28,521 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:00:28" (1/1) ... [2020-07-01 12:00:28,533 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 13 edges [2020-07-01 12:00:28,535 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:00:28,536 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:00:28,536 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:00:28,537 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:00:28,538 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:00:28,539 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:00:28,539 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:00:28,554 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:00:28,562 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 12:00:28,567 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 12:00:28,569 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:00:28,590 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-07-01 12:00:28,592 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:00:28,594 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:00:28,594 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:00:28,594 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:00:28,594 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:00:28,595 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 7 edges [2020-07-01 12:00:28,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:00:28 BasicIcfg [2020-07-01 12:00:28,595 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:00:28,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:00:28,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:00:28,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:00:28,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:00:27" (1/4) ... [2020-07-01 12:00:28,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ee57d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:00:28, skipping insertion in model container [2020-07-01 12:00:28,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:28" (2/4) ... [2020-07-01 12:00:28,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ee57d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:00:28, skipping insertion in model container [2020-07-01 12:00:28,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:00:28" (3/4) ... [2020-07-01 12:00:28,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ee57d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:00:28, skipping insertion in model container [2020-07-01 12:00:28,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:00:28" (4/4) ... [2020-07-01 12:00:28,605 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:00:28,618 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:00:28,626 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:00:28,643 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:00:28,668 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:00:28,669 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:00:28,669 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:00:28,669 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:00:28,669 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:00:28,669 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:00:28,669 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:00:28,669 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:00:28,685 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-07-01 12:00:28,691 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:00:28,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-07-01 12:00:28,750 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:00:28,750 INFO L268 CegarLoopResult]: For program point L10(lines 10 14) no Hoare annotation was computed. [2020-07-01 12:00:28,750 INFO L268 CegarLoopResult]: For program point L10-2(lines 7 15) no Hoare annotation was computed. [2020-07-01 12:00:28,750 INFO L268 CegarLoopResult]: For program point L7(lines 7 15) no Hoare annotation was computed. [2020-07-01 12:00:28,751 INFO L271 CegarLoopResult]: At program point L6-2(lines 6 17) the Hoare annotation is: true [2020-07-01 12:00:28,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:00:28 BasicIcfg [2020-07-01 12:00:28,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:00:28,760 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:00:28,760 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:00:28,763 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:00:28,764 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:00:28,764 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:00:27" (1/5) ... [2020-07-01 12:00:28,765 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5aac1f80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:00:28, skipping insertion in model container [2020-07-01 12:00:28,765 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:00:28,765 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:00:28" (2/5) ... [2020-07-01 12:00:28,766 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5aac1f80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:00:28, skipping insertion in model container [2020-07-01 12:00:28,766 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:00:28,766 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:00:28" (3/5) ... [2020-07-01 12:00:28,767 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5aac1f80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:00:28, skipping insertion in model container [2020-07-01 12:00:28,767 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:00:28,767 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:00:28" (4/5) ... [2020-07-01 12:00:28,767 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5aac1f80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:00:28, skipping insertion in model container [2020-07-01 12:00:28,767 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:00:28,767 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:00:28" (5/5) ... [2020-07-01 12:00:28,769 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:00:28,794 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:00:28,795 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:00:28,795 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:00:28,795 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:00:28,795 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:00:28,795 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:00:28,795 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:00:28,796 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:00:28,799 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-07-01 12:00:28,815 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:00:28,816 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:00:28,816 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:00:28,821 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:00:28,821 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:00:28,821 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:00:28,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-07-01 12:00:28,822 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:00:28,822 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:00:28,822 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:00:28,823 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:00:28,823 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:00:28,828 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [34] ULTIMATE.startENTRY-->L6-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_#in~x] 7#L6-2true [2020-07-01 12:00:28,828 INFO L796 eck$LassoCheckResult]: Loop: 7#L6-2true [44] L6-2-->L7: Formula: (< 0 (+ v_ULTIMATE.start_test_fun_~x_4 v_ULTIMATE.start_test_fun_~y_4)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 5#L7true [36] L7-->L10-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_5 (+ v_ULTIMATE.start_test_fun_~x_6 (- 1))) (< 0 v_ULTIMATE.start_test_fun_~x_6)) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_5} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~x] 6#L10-2true [39] L10-2-->L6-2: Formula: (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) InVars {ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0] 7#L6-2true [2020-07-01 12:00:28,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:00:28,835 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2020-07-01 12:00:28,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:00:28,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600694131] [2020-07-01 12:00:28,844 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:00:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:28,915 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:00:28,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:00:28,916 INFO L82 PathProgramCache]: Analyzing trace with hash 73230, now seen corresponding path program 1 times [2020-07-01 12:00:28,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:00:28,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86538481] [2020-07-01 12:00:28,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:00:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:28,932 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:00:28,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:00:28,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1979854, now seen corresponding path program 1 times [2020-07-01 12:00:28,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:00:28,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426501183] [2020-07-01 12:00:28,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:00:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:28,948 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:00:29,003 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:00:29,004 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:00:29,004 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:00:29,004 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:00:29,004 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:00:29,004 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:00:29,005 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:00:29,005 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:00:29,005 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:00:29,005 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:00:29,005 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:00:29,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:00:29,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:00:29,099 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:00:29,099 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:00:29,107 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:00:29,107 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:00:29,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:00:29,146 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:00:29,170 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:00:29,170 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_fun_~c~0=0} Honda state: {ULTIMATE.start_test_fun_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_test_fun_~c~0=6}, {ULTIMATE.start_test_fun_~c~0=-5}, {ULTIMATE.start_test_fun_~c~0=0}] Lambdas: [1, 1, 3] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:00:29,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:00:29,204 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:00:29,240 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:00:29,240 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:00:29,280 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:00:29,282 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:00:29,282 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:00:29,283 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:00:29,283 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:00:29,283 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:00:29,283 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:00:29,283 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:00:29,283 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:00:29,283 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:00:29,284 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:00:29,284 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:00:29,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:00:29,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:00:29,346 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:00:29,352 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:00:29,357 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:00:29,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:00:29,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:00:29,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:00:29,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:00:29,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:00:29,364 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:00:29,364 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:00:29,369 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:00:29,403 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:00:29,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:00:29,405 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:00:29,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:00:29,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:00:29,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:00:29,407 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:00:29,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:00:29,411 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:00:29,417 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:00:29,417 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:00:29,423 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:00:29,423 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:00:29,424 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:00:29,424 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~x) = 1*ULTIMATE.start_test_fun_~x Supporting invariants [] [2020-07-01 12:00:29,461 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:00:29,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:00:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:00:29,496 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:00:29,497 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:00:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:00:29,507 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:00:29,508 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:00:29,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:00:29,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:00:29,567 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:00:29,567 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:00:29,568 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:00:29,573 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 12:00:29,575 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states. Second operand 4 states. [2020-07-01 12:00:29,610 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states.. Second operand 4 states. Result 13 states and 18 transitions. Complement of second has 4 states. [2020-07-01 12:00:29,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 12:00:29,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:00:29,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2020-07-01 12:00:29,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 1 letters. Loop has 3 letters. [2020-07-01 12:00:29,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:00:29,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 4 letters. Loop has 3 letters. [2020-07-01 12:00:29,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:00:29,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 1 letters. Loop has 6 letters. [2020-07-01 12:00:29,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:00:29,624 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2020-07-01 12:00:29,625 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:00:29,629 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 18 transitions. [2020-07-01 12:00:29,630 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 12:00:29,630 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-07-01 12:00:29,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2020-07-01 12:00:29,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:00:29,631 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2020-07-01 12:00:29,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2020-07-01 12:00:29,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2020-07-01 12:00:29,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-01 12:00:29,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2020-07-01 12:00:29,661 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-07-01 12:00:29,661 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-07-01 12:00:29,661 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:00:29,661 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2020-07-01 12:00:29,662 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:00:29,662 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:00:29,662 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:00:29,662 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:00:29,662 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 12:00:29,663 INFO L794 eck$LassoCheckResult]: Stem: 65#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L6-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_#in~x] 66#L6-2 [44] L6-2-->L7: Formula: (< 0 (+ v_ULTIMATE.start_test_fun_~x_4 v_ULTIMATE.start_test_fun_~y_4)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 67#L7 [2020-07-01 12:00:29,663 INFO L796 eck$LassoCheckResult]: Loop: 67#L7 [46] L7-->L10: Formula: (>= 0 v_ULTIMATE.start_test_fun_~x_7) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7} AuxVars[] AssignedVars[] 61#L10 [32] L10-->L10-2: Formula: (and (< 0 v_ULTIMATE.start_test_fun_~y_6) (= v_ULTIMATE.start_test_fun_~y_5 (+ v_ULTIMATE.start_test_fun_~y_6 (- 1)))) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_6} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_5} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y] 62#L10-2 [39] L10-2-->L6-2: Formula: (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) InVars {ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0] 70#L6-2 [44] L6-2-->L7: Formula: (< 0 (+ v_ULTIMATE.start_test_fun_~x_4 v_ULTIMATE.start_test_fun_~y_4)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 67#L7 [2020-07-01 12:00:29,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:00:29,663 INFO L82 PathProgramCache]: Analyzing trace with hash 2059, now seen corresponding path program 1 times [2020-07-01 12:00:29,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:00:29,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028362861] [2020-07-01 12:00:29,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:00:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:29,673 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:00:29,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:00:29,673 INFO L82 PathProgramCache]: Analyzing trace with hash 2325912, now seen corresponding path program 1 times [2020-07-01 12:00:29,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:00:29,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535423913] [2020-07-01 12:00:29,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:00:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:29,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:29,684 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:00:29,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:00:29,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1902932130, now seen corresponding path program 1 times [2020-07-01 12:00:29,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:00:29,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677037357] [2020-07-01 12:00:29,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:00:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:29,698 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:00:29,731 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:00:29,731 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:00:29,731 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:00:29,731 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:00:29,731 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:00:29,732 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:00:29,732 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:00:29,732 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:00:29,732 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:00:29,732 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:00:29,732 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:00:29,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:00:29,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:00:29,792 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:00:29,792 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:00:29,796 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:00:29,796 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:00:29,833 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:00:29,834 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:00:29,973 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:00:29,976 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:00:29,976 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:00:29,976 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:00:29,976 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:00:29,976 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:00:29,977 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:00:29,977 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:00:29,977 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:00:29,977 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:00:29,977 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:00:29,977 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:00:29,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:00:29,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:00:30,025 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:00:30,026 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:00:30,029 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:00:30,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:00:30,031 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:00:30,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:00:30,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:00:30,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:00:30,033 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:00:30,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:00:30,037 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:00:30,041 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:00:30,042 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:00:30,053 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:00:30,053 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:00:30,053 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:00:30,054 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~y) = 1*ULTIMATE.start_test_fun_~y Supporting invariants [] [2020-07-01 12:00:30,085 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:00:30,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:00:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:00:30,107 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:00:30,107 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:00:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:00:30,112 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 12:00:30,112 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:00:30,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:00:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:00:30,175 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:00:30,175 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:00:30,176 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:00:30,177 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 12:00:30,177 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states and 16 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-07-01 12:00:30,240 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states and 16 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 61 states and 86 transitions. Complement of second has 20 states. [2020-07-01 12:00:30,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-07-01 12:00:30,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:00:30,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 27 transitions. [2020-07-01 12:00:30,243 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 27 transitions. Stem has 2 letters. Loop has 4 letters. [2020-07-01 12:00:30,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:00:30,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 27 transitions. Stem has 6 letters. Loop has 4 letters. [2020-07-01 12:00:30,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:00:30,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 27 transitions. Stem has 2 letters. Loop has 8 letters. [2020-07-01 12:00:30,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:00:30,246 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 86 transitions. [2020-07-01 12:00:30,249 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:00:30,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 24 states and 31 transitions. [2020-07-01 12:00:30,250 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-07-01 12:00:30,250 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-07-01 12:00:30,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2020-07-01 12:00:30,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:00:30,251 INFO L688 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2020-07-01 12:00:30,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2020-07-01 12:00:30,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2020-07-01 12:00:30,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-01 12:00:30,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2020-07-01 12:00:30,254 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2020-07-01 12:00:30,254 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2020-07-01 12:00:30,254 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:00:30,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2020-07-01 12:00:30,255 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:00:30,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:00:30,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:00:30,256 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 12:00:30,256 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-01 12:00:30,256 INFO L794 eck$LassoCheckResult]: Stem: 209#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L6-2: Formula: (and (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~ret2=|v_ULTIMATE.start_main_#t~ret2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~ret2, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_#in~x] 210#L6-2 [44] L6-2-->L7: Formula: (< 0 (+ v_ULTIMATE.start_test_fun_~x_4 v_ULTIMATE.start_test_fun_~y_4)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 220#L7 [46] L7-->L10: Formula: (>= 0 v_ULTIMATE.start_test_fun_~x_7) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7} AuxVars[] AssignedVars[] 204#L10 [2020-07-01 12:00:30,256 INFO L796 eck$LassoCheckResult]: Loop: 204#L10 [47] L10-->L10-2: Formula: (>= 0 v_ULTIMATE.start_test_fun_~y_7) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_7} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_7} AuxVars[] AssignedVars[] 205#L10-2 [39] L10-2-->L6-2: Formula: (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) InVars {ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4} OutVars{ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~c~0] 214#L6-2 [44] L6-2-->L7: Formula: (< 0 (+ v_ULTIMATE.start_test_fun_~x_4 v_ULTIMATE.start_test_fun_~y_4)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_4} AuxVars[] AssignedVars[] 211#L7 [46] L7-->L10: Formula: (>= 0 v_ULTIMATE.start_test_fun_~x_7) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_7} AuxVars[] AssignedVars[] 204#L10 [2020-07-01 12:00:30,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:00:30,257 INFO L82 PathProgramCache]: Analyzing trace with hash 63875, now seen corresponding path program 1 times [2020-07-01 12:00:30,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:00:30,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051333650] [2020-07-01 12:00:30,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:00:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:00:30,266 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:00:30,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:00:30,267 INFO L82 PathProgramCache]: Analyzing trace with hash 2362587, now seen corresponding path program 1 times [2020-07-01 12:00:30,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:00:30,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239115129] [2020-07-01 12:00:30,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:00:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:00:30,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:00:30,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239115129] [2020-07-01 12:00:30,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:00:30,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 12:00:30,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376129111] [2020-07-01 12:00:30,312 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-01 12:00:30,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:00:30,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-01 12:00:30,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-01 12:00:30,315 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-07-01 12:00:30,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:00:30,355 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2020-07-01 12:00:30,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-01 12:00:30,357 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 29 transitions. [2020-07-01 12:00:30,358 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:00:30,358 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2020-07-01 12:00:30,358 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:00:30,359 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:00:30,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:00:30,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:00:30,359 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:00:30,359 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:00:30,359 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:00:30,359 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 12:00:30,359 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:00:30,360 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:00:30,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:00:30,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:00:30 BasicIcfg [2020-07-01 12:00:30,367 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:00:30,369 INFO L168 Benchmark]: Toolchain (without parser) took 2433.22 ms. Allocated memory is still 649.6 MB. Free memory was 562.5 MB in the beginning and 419.0 MB in the end (delta: 143.5 MB). Peak memory consumption was 143.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:00:30,370 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 583.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:00:30,370 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.59 ms. Allocated memory is still 649.6 MB. Free memory was 562.5 MB in the beginning and 613.5 MB in the end (delta: -51.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 50.3 GB. [2020-07-01 12:00:30,371 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.30 ms. Allocated memory is still 649.6 MB. Free memory was 613.5 MB in the beginning and 611.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-07-01 12:00:30,372 INFO L168 Benchmark]: Boogie Preprocessor took 20.28 ms. Allocated memory is still 649.6 MB. Free memory was 611.3 MB in the beginning and 610.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:00:30,372 INFO L168 Benchmark]: RCFGBuilder took 240.45 ms. Allocated memory is still 649.6 MB. Free memory was 609.1 MB in the beginning and 594.6 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:00:30,373 INFO L168 Benchmark]: BlockEncodingV2 took 77.77 ms. Allocated memory is still 649.6 MB. Free memory was 594.6 MB in the beginning and 589.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:00:30,373 INFO L168 Benchmark]: TraceAbstraction took 163.09 ms. Allocated memory is still 649.6 MB. Free memory was 589.2 MB in the beginning and 580.5 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. [2020-07-01 12:00:30,374 INFO L168 Benchmark]: BuchiAutomizer took 1607.07 ms. Allocated memory is still 649.6 MB. Free memory was 580.5 MB in the beginning and 419.0 MB in the end (delta: 161.5 MB). Peak memory consumption was 161.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:00:30,378 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 13 edges - StatisticsResult: Encoded RCFG 5 locations, 7 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 583.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 284.59 ms. Allocated memory is still 649.6 MB. Free memory was 562.5 MB in the beginning and 613.5 MB in the end (delta: -51.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.30 ms. Allocated memory is still 649.6 MB. Free memory was 613.5 MB in the beginning and 611.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.28 ms. Allocated memory is still 649.6 MB. Free memory was 611.3 MB in the beginning and 610.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 240.45 ms. Allocated memory is still 649.6 MB. Free memory was 609.1 MB in the beginning and 594.6 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 77.77 ms. Allocated memory is still 649.6 MB. Free memory was 594.6 MB in the beginning and 589.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 163.09 ms. Allocated memory is still 649.6 MB. Free memory was 589.2 MB in the beginning and 580.5 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1607.07 ms. Allocated memory is still 649.6 MB. Free memory was 580.5 MB in the beginning and 419.0 MB in the end (delta: 161.5 MB). Peak memory consumption was 161.5 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 21 SDtfs, 28 SDslu, 25 SDs, 0 SdLazy, 48 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp75 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq139 hnf95 smp100 dnf100 smp100 tf110 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:00:19.151 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_YXrRPG/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:00:31.013 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check